Cross Station Unit #2 Coal-Fired Power Plants

For nearly two decades, the Cross Generating Station has relied on protective coating systems from Tnemec for its coal-fired plants, including a complete repaint of its Unit 2 spanning a several year period. “The Unit 2 project required a dryfall system,” recalled Tnemec coating consultant Dan Anderson. “It was used because they could spray-apply it and not have to worry about over-spray damage to employee automobiles and other plant surfaces.”

The exterior steel surfaces in the plant were prepared by high-pressure wash and detergent cleaning to remove surface contaminants and loose paint. Rusted areas were prepared in accordance with SSPC-SP3 Power Tool Cleaning. The steel was then spot-primed with Series 135 Chembuild, a polyamidoamine epoxy which offers superior wetting for marginally prepared rusty steel and tightly adhering old coatings. Next, a coat of Series 113 H.B. Tneme-Tufcoat, a waterborne acrylic epoxy, was applied for resistance to staining, abrasion, chemicals and moisture.

A finish coat of Series 30 Spra-Saf EN, an advanced technology acrylic, was then spray-applied to complete the system. Spra-Saf EN is a direct-to-metal coating with very good early flash-rust resistance, as well as long-term corrosion protection and weathering properties. It can be used over aged coatings as it doesn’t overly stress the underlining coating.

In the plant’s scrubber area, a more chemical-resistant coating system was used over the Chembuild primer. An intermediate coat of Series 66 Hi-Build Epoxoline, a polyamide epoxy, was roller-applied, followed by a finish coat of Series 73 Endura-Shield, an aliphatic acrylic polyurethane. Endura-Shield is highly resistant to abrasion, wet conditions, corrosive fumes, chemical contact and exterior weathering.

Cross Generating Station also used Tnemec coating systems for the Unit 3 coal-fired plant, which became operational in 2007, and for Unit 4, scheduled for completion in 2011. “We used the same coating system on the new plants, although we shop-primed everything with Series 90-97 Tneme-Zinc, a moisture-cured, zinc-rich aromatic urethane,” Anderson noted. “More than 18,000 gallons of Tneme-Zinc was used in the shop alone.”

“Overall, more than 100,000 gallons of Tnemec coatings have been used for Units 2, 3 and 4,” Anderson added.

    Project Information

    Location
    Cross, South Carolina

    Completion
    April 2004

    Owner
    Santee Cooper and Moncks Corner, South Carolina

    Engineer
    Santee Cooper and Moncks Corner, South Carolina

    Printer Friendly Version

    PP_Cross_Station_Unit_2_Profile

    Contact Your Rep

    Looking for Some Local Coatings Guidance?

    Reach out to one of our knowledgable and reliable representatives near you.

    How to Purchase

    Ready to Order Tnemec?

    We're ready to help. Click below to learn more about our purchasing process.

    Sustainable Building

    Need Coatings for LEED Projects?

    Tnemec offers a long list of low VOC coatings built to protect sustainable structures.

    Continue Exploring in the color tool

    Close

    Color Swatch packet

    You can use our Color Tool page to explore our available colors and request swatches of colors you like.

    Sorry, there is a maximum of 6 color swatches.

    Request swatch packet

    Continue Exploring in the color tool

    Close